diff options
Diffstat (limited to 'drivers/vdpa/pds/debugfs.c')
| -rw-r--r-- | drivers/vdpa/pds/debugfs.c | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/drivers/vdpa/pds/debugfs.c b/drivers/vdpa/pds/debugfs.c index d91dceb07380..21a0dc0cb607 100644 --- a/drivers/vdpa/pds/debugfs.c +++ b/drivers/vdpa/pds/debugfs.c @@ -10,6 +10,7 @@ #include <linux/pds/pds_auxbus.h> #include "aux_drv.h" +#include "vdpa_dev.h" #include "debugfs.h" static struct dentry *dbfs_dir; @@ -24,3 +25,265 @@ void pds_vdpa_debugfs_destroy(void) debugfs_remove_recursive(dbfs_dir); dbfs_dir = NULL; } + +#define PRINT_SBIT_NAME(__seq, __f, __name) \ + do { \ + if ((__f) & (__name)) \ + seq_printf(__seq, " %s", &#__name[16]); \ + } while (0) + +static void print_status_bits(struct seq_file *seq, u8 status) +{ + seq_puts(seq, "status:"); + PRINT_SBIT_NAME(seq, status, VIRTIO_CONFIG_S_ACKNOWLEDGE); + PRINT_SBIT_NAME(seq, status, VIRTIO_CONFIG_S_DRIVER); + PRINT_SBIT_NAME(seq, status, VIRTIO_CONFIG_S_DRIVER_OK); + PRINT_SBIT_NAME(seq, status, VIRTIO_CONFIG_S_FEATURES_OK); + PRINT_SBIT_NAME(seq, status, VIRTIO_CONFIG_S_NEEDS_RESET); + PRINT_SBIT_NAME(seq, status, VIRTIO_CONFIG_S_FAILED); + seq_puts(seq, "\n"); +} + +static void print_feature_bits_all(struct seq_file *seq, u64 features) +{ + int i; + + seq_puts(seq, "features:"); + + for (i = 0; i < (sizeof(u64) * 8); i++) { + u64 mask = BIT_ULL(i); + + switch (features & mask) { + case BIT_ULL(VIRTIO_NET_F_CSUM): + seq_puts(seq, " VIRTIO_NET_F_CSUM"); + break; + case BIT_ULL(VIRTIO_NET_F_GUEST_CSUM): + seq_puts(seq, " VIRTIO_NET_F_GUEST_CSUM"); + break; + case BIT_ULL(VIRTIO_NET_F_CTRL_GUEST_OFFLOADS): + seq_puts(seq, " VIRTIO_NET_F_CTRL_GUEST_OFFLOADS"); + break; + case BIT_ULL(VIRTIO_NET_F_MTU): + seq_puts(seq, " VIRTIO_NET_F_MTU"); + break; + case BIT_ULL(VIRTIO_NET_F_MAC): + seq_puts(seq, " VIRTIO_NET_F_MAC"); + break; + case BIT_ULL(VIRTIO_NET_F_GUEST_TSO4): + seq_puts(seq, " VIRTIO_NET_F_GUEST_TSO4"); + break; + case BIT_ULL(VIRTIO_NET_F_GUEST_TSO6): + seq_puts(seq, " VIRTIO_NET_F_GUEST_TSO6"); + break; + case BIT_ULL(VIRTIO_NET_F_GUEST_ECN): + seq_puts(seq, " VIRTIO_NET_F_GUEST_ECN"); + break; + case BIT_ULL(VIRTIO_NET_F_GUEST_UFO): + seq_puts(seq, " VIRTIO_NET_F_GUEST_UFO"); + break; + case BIT_ULL(VIRTIO_NET_F_HOST_TSO4): + seq_puts(seq, " VIRTIO_NET_F_HOST_TSO4"); + break; + case BIT_ULL(VIRTIO_NET_F_HOST_TSO6): + seq_puts(seq, " VIRTIO_NET_F_HOST_TSO6"); + break; + case BIT_ULL(VIRTIO_NET_F_HOST_ECN): + seq_puts(seq, " VIRTIO_NET_F_HOST_ECN"); + break; + case BIT_ULL(VIRTIO_NET_F_HOST_UFO): + seq_puts(seq, " VIRTIO_NET_F_HOST_UFO"); + break; + case BIT_ULL(VIRTIO_NET_F_MRG_RXBUF): + seq_puts(seq, " VIRTIO_NET_F_MRG_RXBUF"); + break; + case BIT_ULL(VIRTIO_NET_F_STATUS): + seq_puts(seq, " VIRTIO_NET_F_STATUS"); + break; + case BIT_ULL(VIRTIO_NET_F_CTRL_VQ): + seq_puts(seq, " VIRTIO_NET_F_CTRL_VQ"); + break; + case BIT_ULL(VIRTIO_NET_F_CTRL_RX): + seq_puts(seq, " VIRTIO_NET_F_CTRL_RX"); + break; + case BIT_ULL(VIRTIO_NET_F_CTRL_VLAN): + seq_puts(seq, " VIRTIO_NET_F_CTRL_VLAN"); + break; + case BIT_ULL(VIRTIO_NET_F_CTRL_RX_EXTRA): + seq_puts(seq, " VIRTIO_NET_F_CTRL_RX_EXTRA"); + break; + case BIT_ULL(VIRTIO_NET_F_GUEST_ANNOUNCE): + seq_puts(seq, " VIRTIO_NET_F_GUEST_ANNOUNCE"); + break; + case BIT_ULL(VIRTIO_NET_F_MQ): + seq_puts(seq, " VIRTIO_NET_F_MQ"); + break; + case BIT_ULL(VIRTIO_NET_F_CTRL_MAC_ADDR): + seq_puts(seq, " VIRTIO_NET_F_CTRL_MAC_ADDR"); + break; + case BIT_ULL(VIRTIO_NET_F_HASH_REPORT): + seq_puts(seq, " VIRTIO_NET_F_HASH_REPORT"); + break; + case BIT_ULL(VIRTIO_NET_F_RSS): + seq_puts(seq, " VIRTIO_NET_F_RSS"); + break; + case BIT_ULL(VIRTIO_NET_F_RSC_EXT): + seq_puts(seq, " VIRTIO_NET_F_RSC_EXT"); + break; + case BIT_ULL(VIRTIO_NET_F_STANDBY): + seq_puts(seq, " VIRTIO_NET_F_STANDBY"); + break; + case BIT_ULL(VIRTIO_NET_F_SPEED_DUPLEX): + seq_puts(seq, " VIRTIO_NET_F_SPEED_DUPLEX"); + break; + case BIT_ULL(VIRTIO_F_NOTIFY_ON_EMPTY): + seq_puts(seq, " VIRTIO_F_NOTIFY_ON_EMPTY"); + break; + case BIT_ULL(VIRTIO_F_ANY_LAYOUT): + seq_puts(seq, " VIRTIO_F_ANY_LAYOUT"); + break; + case BIT_ULL(VIRTIO_F_VERSION_1): + seq_puts(seq, " VIRTIO_F_VERSION_1"); + break; + case BIT_ULL(VIRTIO_F_ACCESS_PLATFORM): + seq_puts(seq, " VIRTIO_F_ACCESS_PLATFORM"); + break; + case BIT_ULL(VIRTIO_F_RING_PACKED): + seq_puts(seq, " VIRTIO_F_RING_PACKED"); + break; + case BIT_ULL(VIRTIO_F_ORDER_PLATFORM): + seq_puts(seq, " VIRTIO_F_ORDER_PLATFORM"); + break; + case BIT_ULL(VIRTIO_F_SR_IOV): + seq_puts(seq, " VIRTIO_F_SR_IOV"); + break; + case 0: + break; + default: + seq_printf(seq, " bit_%d", i); + break; + } + } + + seq_puts(seq, "\n"); +} + +void pds_vdpa_debugfs_add_pcidev(struct pds_vdpa_aux *vdpa_aux) +{ + vdpa_aux->dentry = debugfs_create_dir(pci_name(vdpa_aux->padev->vf_pdev), dbfs_dir); +} + +static int identity_show(struct seq_file *seq, void *v) +{ + struct pds_vdpa_aux *vdpa_aux = seq->private; + struct vdpa_mgmt_dev *mgmt; + + seq_printf(seq, "aux_dev: %s\n", + dev_name(&vdpa_aux->padev->aux_dev.dev)); + + mgmt = &vdpa_aux->vdpa_mdev; + seq_printf(seq, "max_vqs: %d\n", mgmt->max_supported_vqs); + seq_printf(seq, "config_attr_mask: %#llx\n", mgmt->config_attr_mask); + seq_printf(seq, "supported_features: %#llx\n", mgmt->supported_features); + print_feature_bits_all(seq, mgmt->supported_features); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(identity); + +void pds_vdpa_debugfs_add_ident(struct pds_vdpa_aux *vdpa_aux) +{ + debugfs_create_file("identity", 0400, vdpa_aux->dentry, + vdpa_aux, &identity_fops); +} + +static int config_show(struct seq_file *seq, void *v) +{ + struct pds_vdpa_device *pdsv = seq->private; + struct virtio_net_config vc; + u64 driver_features; + u8 status; + + memcpy_fromio(&vc, pdsv->vdpa_aux->vd_mdev.device, + sizeof(struct virtio_net_config)); + + seq_printf(seq, "mac: %pM\n", vc.mac); + seq_printf(seq, "max_virtqueue_pairs: %d\n", + __virtio16_to_cpu(true, vc.max_virtqueue_pairs)); + seq_printf(seq, "mtu: %d\n", __virtio16_to_cpu(true, vc.mtu)); + seq_printf(seq, "speed: %d\n", le32_to_cpu(vc.speed)); + seq_printf(seq, "duplex: %d\n", vc.duplex); + seq_printf(seq, "rss_max_key_size: %d\n", vc.rss_max_key_size); + seq_printf(seq, "rss_max_indirection_table_length: %d\n", + le16_to_cpu(vc.rss_max_indirection_table_length)); + seq_printf(seq, "supported_hash_types: %#x\n", + le32_to_cpu(vc.supported_hash_types)); + seq_printf(seq, "vn_status: %#x\n", + __virtio16_to_cpu(true, vc.status)); + + status = vp_modern_get_status(&pdsv->vdpa_aux->vd_mdev); + seq_printf(seq, "dev_status: %#x\n", status); + print_status_bits(seq, status); + + seq_printf(seq, "req_features: %#llx\n", pdsv->req_features); + print_feature_bits_all(seq, pdsv->req_features); + driver_features = vp_modern_get_driver_features(&pdsv->vdpa_aux->vd_mdev); + seq_printf(seq, "driver_features: %#llx\n", driver_features); + print_feature_bits_all(seq, driver_features); + seq_printf(seq, "vdpa_index: %d\n", pdsv->vdpa_index); + seq_printf(seq, "num_vqs: %d\n", pdsv->num_vqs); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(config); + +static int vq_show(struct seq_file *seq, void *v) +{ + struct pds_vdpa_vq_info *vq = seq->private; + + seq_printf(seq, "ready: %d\n", vq->ready); + seq_printf(seq, "desc_addr: %#llx\n", vq->desc_addr); + seq_printf(seq, "avail_addr: %#llx\n", vq->avail_addr); + seq_printf(seq, "used_addr: %#llx\n", vq->used_addr); + seq_printf(seq, "q_len: %d\n", vq->q_len); + seq_printf(seq, "qid: %d\n", vq->qid); + + seq_printf(seq, "doorbell: %#llx\n", vq->doorbell); + seq_printf(seq, "avail_idx: %d\n", vq->avail_idx); + seq_printf(seq, "used_idx: %d\n", vq->used_idx); + seq_printf(seq, "irq: %d\n", vq->irq); + seq_printf(seq, "irq-name: %s\n", vq->irq_name); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(vq); + +void pds_vdpa_debugfs_add_vdpadev(struct pds_vdpa_aux *vdpa_aux) +{ + int i; + + debugfs_create_file("config", 0400, vdpa_aux->dentry, vdpa_aux->pdsv, &config_fops); + + for (i = 0; i < vdpa_aux->pdsv->num_vqs; i++) { + char name[8]; + + snprintf(name, sizeof(name), "vq%02d", i); + debugfs_create_file(name, 0400, vdpa_aux->dentry, + &vdpa_aux->pdsv->vqs[i], &vq_fops); + } +} + +void pds_vdpa_debugfs_del_vdpadev(struct pds_vdpa_aux *vdpa_aux) +{ + debugfs_remove_recursive(vdpa_aux->dentry); + vdpa_aux->dentry = NULL; +} + +void pds_vdpa_debugfs_reset_vdpadev(struct pds_vdpa_aux *vdpa_aux) +{ + /* we don't keep track of the entries, so remove it all + * then rebuild the basics + */ + pds_vdpa_debugfs_del_vdpadev(vdpa_aux); + pds_vdpa_debugfs_add_pcidev(vdpa_aux); + pds_vdpa_debugfs_add_ident(vdpa_aux); +} |